New building plans attract ample attention for renderings of glassy towers that someday could loom over Twin Cities streets.
But how many doors will they have?
How buildings feel to people on foot and at street level is an obsession of sorts for consultant Sam Newberg, who channels famed urban thinker Jane Jacobs in his critiques of local streetscapes. Newberg's consulting company, Joe Urban, specializes in real estate market studies, but he also writes prolifically about urban design on his blog and at streets.mn.
Curious about the good and the bad of newer development in Minneapolis, I asked him to give me a bike tour of the city with an eye toward first floors.
"If we started the development process by looking at the ground level and how it relates to the public realm, how that interaction weaves itself together, we'd get better results," Newberg said.
The subject of doorways and entrances arose frequently during our two-hour excursion. It turns out that the number of doors, spacing of doors and orientation of walkout unit entrances to the street play a big role in how inviting a building feels — at least to Newberg.
He often uses the term "Gehl Door Average" or "GDA" to describe Danish architect Jan Gehl's measure of the number of doors for every 100 meters of street frontage — a "GDA" of 10 or more is a positive sign.
While Minneapolis' ordinances are very specific about the percentage of the first floor consumed by windows (20 and 30 percent for residential and commercial buildings, respectively) multiple doors are merely "encouraged."